newkirk



M. M. NEWKIRK.

sin) GRADING AND CLEANING MACHINE.

APPLICATION FILED OCT-14.19M-

INVEN TOR. Manx/1. New/0px Patented Dec. 2,1919.

2 SHEETS-SHEET I.

M A TTORNEY.

M. M. NEWKIRK.

SEED GRADING AND CLEANING MACHINE.

APPLICATION FILED OCT-14. 1918.

1,323,784. I v Patented De0.2,1919.

2 SHEETS-SHEET 2.

INVENTOR.

ATTORNEY.

. Nnr M Men Mex.

s r TN'r OFFICE.

MARY ivr. NEWKIRK, or. INDIANAPOLIS, INDIANA.

SEED GBADIN G AND CLEANING MACHINE.

following is a full, clear,and exact descriptionthereof, reference being had to the accompanying drawings, in which like immerals refer to like parts.

A This invention relates to seed grading and cleaning machines, and particularly to that class adapted to be used for cleaning and grading wheat,-oats, beans, clover seed and the like.

' One featureof the invention is the provision of a plurality of screens arranged to form a hurdle so arranged that different kinds of seed will be separated and graded while passing overthe hurdle.

A further feature of the invention is the provision of means for causing the grains.

to assume a horizontal position before pass-' ing onto theperforated portion of the top screen.

A further feature of the invention 1s the provision of means for imparting. anoscillating movement to parts of the screen structures in the cleaning machine, and at the same time deliver a jar thereto, whereby any particles of grain tending to stlck in the mesh ofthe screen Wlll be loosened and caused to descend into the proper receptacle or compartment.

Other objects and advantages will be hereinafter more fully set forth and pointed out in'the accompanying specification.

I In the accompanying drawings which are made a part of this application Figure 1 IS a perspective viewof the seed grading and cleaning machine, showing the means thereon for imparting a blow.- as well as give longitudinal movement to certain. parts of the grading screens of themachine. Fig. 2 is afragmentary s1de elevation of the bar for delivering a blow to one of the grading screens- Fig. 3 is a sectional view thereof as seen on line 33 Fig. 2. .Fig. 4 is a detail elevation of a bar employed for impart ing motion to the blow delivery part. Fig. 5 is' a-vertical sectional view through the machine showing the machine having a hurdle construct o herein, Fig- .6 is top Specification of Letters Patent.

and 4 a shakerframe supported and operated by a conventional suspending means common to devices of this class and as all of said parts are of theusual construction it is not deemed necessary to show the same, they forming nopart of the present invention. In addition to the usual screens car- Patented Dec. 2, 1919.

Application filed October 14, 1918. Serial No. 258,015.

ried by the shaker frame for cleaning and I separating the grain, grading screens 5 and 6 are provided, which are-positioned below the'shaker frame, and preferably disposed at an inclination, said screens being slid :ably mounted between the posts of the frame 1. In order to impartoscillatory movement to said screens 5 and 6, a shaker bar 7 is provided, which extends through a clip -8, attached to 'the frame 1, said bar having a plurality of openings 9 in its length for the 7 reception of a pin 10, so that the stroke of the bar 7 may be varied. The lower end of the shaker bar is enlarged or increased in width, preferably by bending the bar edgew-ise upon itself, the enlarged portion 11 being. pivotally attached to a side bar 12 of thegra ding screen 6, while the upper end of the upwardly bent p0rtion13 ofthe bar 7 is provided with aslot 14,- in which fits a rod 15 extending through the sidebar 16Qof the grading screen: Y

' Y To more readily adapt the Q enlarged portion 11"for engagement with the grading screens. 5 and6, assaid' screens extend at an angle, the enlarged portion is preferably extended at an angle to the main portion of the shaker bar 7 as best shown in Fig. 2 of the drawings, although it'will be noted that said enlarged portionmay be extended in a straight line with the remaining portion of the shaker bar, if desired. The shaker bar 7 7 is rocked back and. forth on the pivot pin 10 by pivotally attaching an operatingbar 17 .to the upper end ofthe bar 7 the opposite end of said operating'bar having an opening 18 therein, in which fits a cam 19 fixed'to 'a-fan shaft 20, and as said cam is mounted eccentrically on the fan shaft,'the operating bar 17 willbe-given alongitudinal movement as the fan shaft rotates. This imparts an oscillatory v7 or longitudinal movement to the screens 5 and 6, while a vibratory movement is imparted thereto from a portion of the shaker frame 1 as is usual in devices of thiskind',

In addition to the above movements of the grading screen 5," it is desirable to or deliver blow to said screen, so as to cause vertical vibration of the screen 21, so that sho'uld any grains stick in the 1116Sl1 theblow' delivered to the screen will loosen same, and to this end the enlarged portion 11' of thebar'7 is provided with an angular portion 22, which extends under the side ba1 *1-6' of the grading screen 5, and as said bar 7' swings on its pivot 10' the edge of the angular portion 22'w'111 strike the edge or the sidebar 16 and deliver a slight jar thereto. As" it is necessary to frequently remove the screen 5, the slot 1 1 is open at its upper end, so that the rod 15 carried a by the grading screen 5 can be readily'engaged with or disengaged therefrom.

Mounted Within the shaker frame dis a hnrdle 23, comprising a frame 24 in which are mounted screens 25,126 and 27,- which, preferably constructed of sheets of metaa've ap-l'urality of circular perforations 28 therethrough for the passage of the grain 'orseeda The primecfeature of this construction is to separateoats from wheat, although it may be used for manyvrother purposes with the same success- In. view of the fac'tthat the oats grain is of consijderable length and the wheat grain is shorter and nore plump, the oats grain, when descending from the hopper 2, usually descends lengthwise 'orHvertically, and consequently would be far more-liable to pass directly through theperforations 28, but

order to obviate this objectionable feature, and to rcau'se'thexoat's grainfto rest lengthwise on the top screen, theinner end sem n-29. of theupper screen25 is made imperforate, consequently the oats grain,

, when striking this portionof the screen, and whith'is' situated directly under the opening inthe hopper, will assume a 'p os1 tion horizontal ofthescreen and pass on to the' perforated 'ortion in. this position, andconsequent ly the oats grain will ride over the perforations and leave the upper screen 25 at the outer. end thereof, Wllll' the shorter wheat grains will descend through said perforationsfi I After the grain,

passes through the screen 25 it is further separated and graded by the screens 26 and 27, and as the screens' ar'e of different lengths the gra passing over each screen will be deposite i'Iia separateplace thereby formed by bending the lower end portion ,is rocked ;on its pivot. or r keeping the various grades of grain separated 7 y The lnventlon clalmed 1s:

7 e 1.- A- seed grading and cleaning machine,

2. Aseed grading'and cleaning machine,

including a' stationary frame, a vertically extending shaker ba-r pivoted-at'apointbe tween its ends to said frame, a pair. of'grading' screens at the lower end of said bar, one above the other, means to pivotally attach the lower screen to, said bar, means-for remetably and pivotally attaching said upper screen to the bar, means for rocking the shaker bar back and forth on its pivot; for

ment to said screen, and a laterally'bent portion on the bar f for delivering a blow to the upper screen when' th'e in either direction; 3. In a seed grading and cleaning ma chine, the combination with a fan structure and a grading screen, of a fiat adjustable having an enlarged portion at its lower end,

of the bar edgewise and extending theupwardly bent portion along the edge of the bar, said enlargedfportion havingangofi'i- Vs'et portion extending'below said grading screen, and means operated by-the fan bar is moved i imparting longitudinal oscillatory, move- 4 and pivotally'mounted shaker bar, said-bar structure for rocking said 1 shaker bar on its pivot whereby the ofl'set extension on the bar will deliver a blow to said grading screen. Ina seed grading and cleani'ng machine, the 'combinationwith a frame, and a mesh gradingscreenjremovably mounted in said frame, of a vertically ';'extending shaker bar," means for "a'djustably and pivotally attaching'said. to partsof the frame of' the screen, means. to removably and pivotally'attachjsaid grading screen 'to the lower portion of said shaker bar,

means to rock said shaker bar on its pivot,

and means on the shaker bar for imparting a blow tosaid grading screen when the bar "5. Ina seed grading and cleaningmachine, thecombination with a 'pivotally i25 I mounted shaker bar, having its lower end bent upwardly and edgewisetothe bar, the upwardly bent portion having any elongated 7 slot inits free endgofa grading screen and a 'rod projecting flTQlll 9h? bar of the 13-0 grading machine adapted to enter said slot for pivotally engagingthe screen with the shaker bar.

6. In a seed grading and cleaning machine, the combination with a frame and a pair of grading screens, one above the other and longitudinally movable in said frame, of a vertically extending shaker bar pivoted to said frame, means to pivot the lower 10 grading screen to the lower end of the shaker bar, and a rod projecting from the upper grading screen, parts of said shaker vbar having an elongated slot for the reception of said rod whereby the upper screen will be removably pivoted to said shaker bar.

7 In witness whereof, I have hereunto afiixed my signature.

MARY M. NEWKIRK. 

